Please... do not pay anybody for "common grant application" or any grant application for that matter.. I do not know any grant maker, government agency, private foundation, or charity organization that requires you to pay, in order to submit a grant application. If you need to make a grant application, first identify the grant maker, call them, use  their website or some of the available free software in order to create a "common" or specific  grant application. Federal Money Retriever and GrantGate are free to download for free here and both have grant application functionalities.

I decided to check out this program.  It seems very interested but you have to make sure you read each and every line on the site.  It's FREE to set up the profile itself but I also found the wording below.  Just thought I would give heads up.

Pricing

There is no charge for grantseekers to set up their profile on the Web site. Grantseekers will pay a low fee of $10 - $15 for each grant application that they submit to a grantmaker. Grantseekers may be able to waive payment of the application fee if they are issued a waiver by the grantmaker to which they are applying.